ISO7241CDW - Texas Instruments - QUAD DIGITAL ISOLATORSDUAL 1,024 x 9, DU



Detailed Product Description

Quick Detail:







The ISO7240, ISO7241 and ISO7242 are quad-channel digital isolators with multiple channel configurations with output enable function. These devices have logic input and output buffers separated by TI’s silicon dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

The ISO7240 has all four channels in the same direction while the ISO7241 has three channels the same direction and one channel in opposition. The ISO7242 has two channels in each direction.

The A and C option devices have TTL input thresholds and a noise-filter at the input that prevents transient pulses from being passed to the output of the device. The M option devices have CMOS Vcc/2 input thresholds and do not have the input noise-filter or the additional propagation delay.

A periodic update pulse is sent across the barrier to ensure the proper dc level of the output. If this dc-refresh pulse is not received, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state. (Contact TI for a logic low failsafe option).

These devices may be powered from either 3.3-V or 5-V supplies on either side in any 3.3-V / 3.3-V, 5-V / 5-V, 5-V / 3.3-V, or 3.3-V / 5-V combination. Note that the signal input pins are 5-V tolerant regardless of the voltage supply level being used.

These devices are characterized for operation over the ambient temperature range of –40°C to 125°C





• 1, 25, and 150-Mbps Signaling Rate Options

– Low Channel-to-Channel Output Skew; 1 ns Max Range

– Low Pulse-Width Distortion (PWD);2 ns Max

• High Electromagnetic Immunity (see application report SLLA181)

• –40°C to 125°C Operating

– Low Jitter Content; 1 ns Typ at 150 Mbps

• Typical 25-Year Life at Rated Working Voltage (see application note SLLA197 and Figure 14)

• 4000-Vpeak Isolation, 560-Vpeak Working Voltage

• UL 1577 Certified

• 4 kV ESD Protection

• Operate With 3.3-V or 5-V Supplies






ISO7240CF, ISO7240-42C/M

Product Photos


Standard Package





Digital Isolators





Inputs - Side 1/Side 2


Number of Channels


Voltage - Supply

3.15 V ~ 5.5 V

Voltage - Isolation


Data Rate


Propagation Delay


Output Type


Package / Case

16-SOIC (0.295", 7.50mm Width)

Supplier Device Package


Operating Temperature

-40°C ~ 125°C

For Use With

296-30949-ND - EVAL MODULE FOR ISO723X724X

Other Names




Competitive Advantage:


Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .

Why buy from us >>> Fast / Safely / Conveniently

•    SIERRA SUPERIOR ELECTRON LTD is a Stock keeper and trade company of Electronic components .Our branches office include China, Hong Kong, Sigapore , Canada . Offer business, service, resourcing and information for our global member.
•    Goods are ensured the highest quality possible and are delivered to our customers all over the world with speed and precision.


How to buy >>>

•    Contact us by email & sent your inquire with your Transport destination .
•    Online chat, the commissioner would be responded ASAP.


Service >>>

•    Forwarder Shipment to world-wide, DHL ,TNT ,UPS,FEDEX etc.  buyer don`t need to worry about shipping problem
•    We will try to respond as quickly as possible. But due to time zone difference, please allow up to 24 hours to get your mail replied. The products were tested by some devices or software, we ensure that there is no quality problems.
•    We are committed to providing fast, convenient and safe transportation service to global buyer.

Related Product